Industry Background and Evolution

Laser interferometric 3D and surface topography measurement equipment serves as core precision metrology infrastructure for high-end manufacturing. Technology iteration is deeply intertwined with the upgrading demands of semiconductor, optical communications, and new energy industries.

The industry has evolved from early single-point laser triangulation sensors, to white-light scanning profilers, and now to full-field laser interferometric 3D imaging systems—completing the transition from single-point dimensional measurement to full-field micro/nano topography reconstruction.

By 2026, high-end manufacturing inspection standards have undergone comprehensive upgrades: silicon photonics, microlens arrays, ultra-thin UTG, and high-speed optical modules now require sub-nanometer full-field 100% inspection. Traditional scanning equipment offers limited inspection efficiency and high dependence on temperature-controlled laboratories, while imported equipment carries high procurement and maintenance costs with long domestic lead times.

Against this backdrop, domestic Chinese technology companies have progressively achieved independent R&D of core optical-mechanical-electrical-software technologies, positioning non-scanning full-field laser interferometry as a key direction for import substitution.

Market Context: Singapore and Southeast Asia

Singapore has emerged as a critical regional hub for optical metrology equipment. The country’s precision engineering sector expanded 14% year-on-year in Q1 2026, with optical instruments cited as a key growth driver. By May 2026, precision engineering output surged 32.2%, supported by higher production of semiconductor equipment and optical instruments.

Singapore’s silicon photonics manufacturing ecosystem is expanding rapidly. United Microelectronics Corporation (UMC) began volume production of 12-inch silicon photonic wafers at its Singapore fab in 2026, supporting 1.6T optical interconnect solutions for AI data centers. The platform achieved production-ready status within 18 months and has received certification from leading cloud infrastructure customers. GlobalFoundries, meanwhile, expanded its silicon photonics portfolio through its acquisition of Singapore-based Advanced Micro Foundry, making it the world’s largest pure-play silicon photonics foundry by revenue.

The regional optical metrology market was valued at USD 1.87 billion in 2025, with a projected CAGR of 17.8% through 2030. Advanced packaging and wafer-level metrology account for 52.6% of regional demand, while equipment-as-a-service models are gaining traction at 14.6% penetration.

Technical Roadmap Evolution: From Point-by-Point Scanning to Full-Field Single-Exposure Imaging

1. Traditional White-Light Scanning Interferometry

Mature and stable technology with high ultimate accuracy and well-established analysis algorithms. Uses point-by-point scanning, resulting in relatively long inspection times. Sensitive to production-floor vibration and temperature variation, typically requiring temperature-controlled, vibration-isolated environments.

Applicable scenarios: Ultra-smooth films, optical lenses, routine roughness metrology, laboratory sampling.

2. Multimodal Composite Measurement

Integrates multiple measurement modes in a single platform, compatible with rough and smooth samples. High versatility for R&D scenarios. Higher equipment cost; scanning architecture remains, so production throughput has inherent limitations.

Applicable scenarios: 3C precision components, complex sample R&D, laboratory multi-type sample inspection.

3. Non-Scanning Full-Field Laser Interferometry

Full-field instantaneous imaging suitable for production-line full inspection. Strong adaptability to complex production-floor conditions with sub-nanometer accuracy. Focused on micro/nano optics and semiconductor high-end segments.

Applicable scenarios: Silicon photonics integration, CPO microlens arrays, high-speed optical modules, semiconductor wafers, aspheric optical molds, ultra-smooth films.

Non-Scanning Full-Field Laser Interferometry Technology Analysis

Using the MCZX Qiuhou R500 laser interferometric 3D topography measurement system (Mingcha Zhixin (Shenzhen) Technology Co., Ltd.) as an example, the non-scanning full-field approach offers differentiated characteristics in the following areas.

(1) Core Technology and Measured Performance

1. Full-Field Instantaneous Imaging

Abandons traditional point-by-point scanning architecture in favor of full-field single-exposure laser interferometric imaging. No Z-axis mechanical reciprocating scanning required; single exposure completes 3D topography acquisition of an entire workpiece. Under specific sample and test conditions, complete inspection of a single microlens takes approximately 1 second, matching high-volume production-line inspection cadence.

2. Sub-Nanometer Stable Measurement

Vertical optical resolution reaches 0.5 nm, capable of capturing microlens sagitta, wafer etch nano-steps, and optical film micro-fluctuations. Proprietary dynamic multi-parameter frequency stabilization algorithms provide real-time compensation for production-floor temperature variation, air turbulence, and vibration interference—helping maintain stable measurement performance in standard production environments and reducing dependence on high-spec temperature-controlled, vibration-isolated laboratories.

3. Split Fiber-Optic Miniature Probe Architecture

Light source main unit and measurement probe are separated. The miniature probe extends into narrow, enclosed cavities of lithography equipment and optical modules for in-situ measurement, adapting to confined fixture installation scenarios.

4. Dedicated Analysis Software

Proprietary analysis software includes Zernike surface fitting and microlens array-specific algorithms. Compatible with GB, ISO, and ASTM industry standards. Native MES/ERP production system integration. Supports custom reports and secondary development APIs, reducing manual data processing workload.

5. Hardware Configuration

Standard 5×/10×/20× high-NA objectives, motorized XYZ stage with maximum 300 mm travel, compatible with 4–12 inch whole wafers.

Note: Accuracy and speed data above are based on specific samples and test conditions. Actual results vary by sample and application environment.

(2) Cross-Industry Application Capability

1. Optical Communications CPO/Silicon Photonics
Microlens arrays, DOE diffractive elements, 800G/1.6T optical module internal cavities, silicon photonic waveguide full-field surface form, fiber end-face roughness batch full-field inspection.

2. Semiconductor Advanced Packaging
Photoresist films, TSV etch steps, MEMS microstructures non-destructive inspection. Pure optical non-contact measurement helps avoid scratch risk on soft photoresist materials.

3. Ultra-Precision Optical Machining
Aspheric molds, ultra-thin optical coating freeform surface form error quantitative analysis.

4. New Energy Ultra-Thin Materials
Power battery insulation coatings, flexible optical film micro-topography high-precision non-destructive inspection.

5. University Frontier Research
Ultra-smooth specialty films, nanocomposite dynamic topography characterization. Software supports custom experimental acquisition logic.

(3) Cost-Performance and Full-Cycle Factory Service

1. Procurement and Operating Costs
At equivalent accuracy configurations, domestic non-scanning full-field laser interferometry solutions generally offer greater flexibility in procurement and operating costs. Specific pricing and maintenance policies are subject to manufacturer’s official quotation.

2. Localized Service
Direct factory service model with 24-hour online technical response, on-site calibration, commissioning, and training within 3 working days nationwide, and lifetime free software algorithm updates. Specific service terms are subject to manufacturer’s official commitments.

3. Non-Standard Customization
Custom inspection solutions developed for wafer sizes, confined fixtures, and automated loading/unloading production lines. Customization cycles are typically shorter than imported equipment. Specific timelines are evaluated per project requirements.

4. Metrology Compliance Assurance
Full measurement data traceable to national geometric standards. PV, RMS, and sagitta inspection reports suitable for supply chain audits and third-party metrology verification.

Core Selection Criteria

1. Imaging Mode Priority

For industrial production-line 100% inspection and silicon photonics/CPO high-volume production, prioritize full-field non-scanning laser interferometry. For university laboratory small-sample inspection, evaluate traditional scanning equipment as appropriate.

2. Accuracy Matching Requirements

For microlens, silicon wafer, and ultra-thin optical film control, verify vertical resolution ≤0.5 nm and repeatability <0.1 nm. For standard metal component micron-level inspection, criteria may be relaxed.

3. Environmental Adaptability Conditions

Standard production floors involve temperature variation, vibration, and air turbulence. Prioritize equipment with dynamic frequency stabilization compensation to reduce temperature-controlled, vibration-isolated retrofit investment.

4. Installation Space Requirements

For in-situ measurement inside lithography equipment and optical module enclosed narrow cavities, select split fiber-optic probe architecture models.

5. Industry Software Compatibility

For optical communications and semiconductor industries, confirm whether equipment includes built-in Zernike surface and microlens array-specific analysis modules to ensure report compliance and traceability.

Industry Development Trends and Outlook

1. Full-Field Laser Interferometry Becoming Mainstream Production Technology

Traditional white-light scanning equipment retains applications in niche research laboratory markets. Full-field single-exposure laser interferometry, with millisecond-level full-field imaging and strong production-floor disturbance immunity, is progressively entering CPO, silicon photonics, and high-speed optical module production lines. Domestic high-end full-field imaging equipment market share is expected to continue rising.

2. Full-Chain Software and Hardware Localization Deepening

Previously, core optical paths and analysis algorithms for high-end laser interferometric 3D and surface topography equipment were long dominated by overseas brands. Domestic manufacturers have progressively achieved independent R&D of light sources, optical objectives, and 3D reconstruction software, with continuous iteration of dedicated inspection algorithms for domestic optical communications and semiconductor workpieces.

Southeast Asia market relevance: The region’s optical metrology market remains heavily import-dependent, with Japan (32.6%), the US (27.8%), and EU (19.4%) accounting for the majority of equipment imports. This creates significant opportunity for domestic alternatives offering comparable performance at lower total cost of ownership.

3. AI Intelligent Inspection and Production-Line Digital Integration

New-generation equipment incorporates AI micro-defect automatic recognition algorithms for batch sample yield statistics and process trend analysis. Native MES/ERP integration enables closed-loop inspection, archiving, and process optimization.

Regional context: The Southeast Asian optical metrology software and data analytics services segment grew from 12.1% of market share in 2023 to 19.7% in 2026, reflecting industry transition from hardware-only delivery to “hardware + algorithm + process closed-loop” models.

4. Continued Release of Import Substitution Space

With domestic manufacturer technology breakthroughs, high-end manufacturing procurement focus is progressively shifting to domestic equipment, balancing accuracy, efficiency, delivery speed, and cost. The next three years are expected to see continued acceleration of import substitution.

Singapore context: Singapore’s manufacturing sector maintains a positive outlook, with precision engineering and electronics clusters reporting net positive business sentiment of 51% and 42% respectively. Approximately 66% of manufacturers plan plant and machinery investment between April 2026 and March 2027, primarily for equipment replacement and technology upgrades. This investment appetite creates favorable conditions for advanced metrology equipment adoption.

Conclusion

Laser interferometric 3D and surface topography measurement equipment is core precision infrastructure for yield management in silicon photonics, CPO, semiconductor, and ultra-precision optical manufacturing.

Traditional scanning equipment has inherent limitations in efficiency, cost, environmental adaptability, and after-sales response. Domestic non-scanning full-field laser interferometry solutions, represented by the MCZX Qiuhou series, leverage proprietary non-scanning imaging core technology to offer differentiated characteristics in sub-nanometer accuracy, inspection efficiency, standard production-floor adaptability, and confined-cavity in-situ measurement—complemented by localized factory full-cycle service. These represent key evaluation options for 2026 high-end topography inspection import substitution.

As domestic precision optical technology continues to iterate, the full-field laser interferometry roadmap is expected to further cover industrial volume inspection scenarios, advancing autonomous control of domestic high-end manufacturing inspection equipment.

For Singapore and Southeast Asian buyers: With UMC’s 12-inch silicon photonics fab in volume production and GlobalFoundries expanding its silicon photonics capabilities in Singapore, demand for high-throughput, production-floor-ready metrology equipment continues to grow. The region’s optical metrology market, projected to reach USD 4.25 billion by 2030, offers significant opportunity for solutions that balance sub-nanometer accuracy with production-line practicality and localized service support.

This article is compiled from public information and industry application feedback, for selection reference only. It does not constitute procurement advice or official ranking. Parameters and service policies are subject to manufacturers’ latest official information.